There are at least four artists called Havok: (1) an American thrash metal band ; (2) a German death metal band; (3) a Swedish extreme metal band; and (4) an underground rapper.
These are photos from concerts where Havok played, so they may be of other bands that played the concert as well.
Venom / Obituary / Terrorizer / Rob Zombie / Overkill / Havok Oct 25, 2014 Mexico City, Mexico City, Mexico Uploaded by Jcharlesblack2
Corona Hell & Heaven Metal Fest 2014 Oct 25, 2014 Mexico City, Mexico City, Mexico Uploaded by Denzho
Crowbar / Revocation / Fit For An Autopsy / Havok / Armed For The Apocalypse Sep 27, 2014 Spokane, Washington, United States Uploaded by Postmortem
Crowbar / Revocation / Havok / Fit For An Autopsy / Armed for Apocalypse Sep 13, 2014 Charlotte, North Carolina, United States Uploaded by Arestus
Soulfly / Havok / Shaokahn / Neverfall Oct 25, 2013 Spartanburg, South Carolina, United States Uploaded by Arestus
Havok Aug 9, 2013 Trenton, New Jersey, United States Uploaded by Richie Brown
Skeletonwitch / Havok / Mutilation Rites Nov 11, 2012 Des Moines, Iowa, United States Uploaded by Chris Kimpson
3 Inches Of Blood / Goatwhore / Angelus Apatrida / Havok May 12, 2012 Plymouth, England, United Kingdom Uploaded by Josh King
Sepultura / Death Angel / Krisiun / Havok Apr 21, 2012 Joliet, Illinois, United States Uploaded by Chris Kimpson